These are the other questions: I'll start from Number 1.
1. I have to write down the symbol for the following ions:
a- sodium = Na
b- chloride = CL
c- sulfate = S
d- ammonium = ? would it be NH4?
e- chromium (II) = Cr
f- chromium(III) = Cr
2. write the formulas for the compounds formed in each of the following:
a-magnesium and chlorine = MgCl2
b-silver and sulfur = Ag
c-cobalt(iII) and Oxygen
d-Zinc and bromine
e-calcium and nitrogen
f-copper(I) and nitrate
Write the names of the two ions in each of the following compounds.
a- Al2(SO4)3 = How do I do this? Do I just write their names? Could you please help me with this one.
Thank you very much:-)
a-magnesium and chlorine = MgCl2
b-silver and sulfur = Ag2S
c-cobalt(III) and Oxygen = Co2O3
d-Zinc and bromine = ZnBr2
e-calcium and nitrogen = Ca3N2
f-copper(I) and nitrate = Cu3NO
Sorry about that. I jumped onto the next question without finishing the previous one. Can you please check if I have done these correctly, thank you very much:-)
1. I have to write down the symbol for the following ions:
a- sodium = Na Na^+
b- chloride = CL Cl^-, not CL
c- sulfate = S SO4^-2
d- ammonium = ? would it be NH4?Yes, but with a +1 charge
e- chromium (II) = Cr Cr^+2 and it is incorrect without the charge showing. That is what the (II) tells you
f- chromium(III) = Cr Cr^+3
2. write the formulas for the compounds formed in each of the following:
a-magnesium and chlorine = MgCl2
b-silver and sulfur = Ag
c-cobalt(iII) and Oxygen
d-Zinc and bromine
e-calcium and nitrogen
f-copper(I) and nitrate
Ag2S, Co2O3, ZnBr2, Ca3N2, Ca(NO3)2
Write the names of the two ions in each of the following compounds.
a- Al2(SO4)3 = How do I do this? Do I just write their names? Could you please help me with this one.
Aluminum ion and sulfate ion.
Thank you very much DrBob222. You've helped me a lot, and I really appreciate that:-)
1. To write down the symbol for an ion, you need to know the element it belongs to and its charge. Here are the symbols for the given ions:
a- sodium = Na
b- chloride = Cl
c- sulfate = SO4
d- ammonium = NH4+
e- chromium (II) = Cr2+
f- chromium(III) = Cr3+
2. To write the formulas for compounds formed between two elements, you need to know the charges on each element.
a- magnesium and chlorine: Magnesium has a charge of +2, while chlorine has a charge of -1. To balance the charges, the formula becomes MgCl2.
b- silver and sulfur: Silver has a charge of +1, while sulfur has a charge of -2. To balance the charges, the formula becomes Ag2S.
c- cobalt(III) and oxygen: Cobalt(III) has a charge of +3, while oxygen has a charge of -2. To balance the charges, the formula becomes Co2O3.
d- zinc and bromine: Zinc has a charge of +2, while bromine has a charge of -1. To balance the charges, the formula becomes ZnBr2.
e- calcium and nitrogen: Calcium has a charge of +2, while nitrogen has a charge of -3. To balance the charges, the formula becomes Ca3N2.
f- copper(I) and nitrate: Copper(I) has a charge of +1, while nitrate (NO3-) has a charge of -1. To balance the charges, the formula becomes CuNO3.
3. To write the names of compounds, you need to know the formula and be able to identify the ions involved.
a- Al2(SO4)3: To name this compound, you need to identify the ions. Al2+ is aluminum and SO4 is sulfate. "Al2(SO4)3" indicates that there are two aluminum ions and three sulfate ions. The name of the compound is aluminum sulfate.